<!DOCTYPE html>
<html>
<head>
    <meta charset='utf-8'>
    <meta http-equiv='X-UA-Compatible' content='IE=edge'>
    <title>Page Title</title>
    <meta name='viewport' content='width=device-width, initial-scale=1'>
    <link rel="stylesheet" href="./bootstrap-3.4.1-dist/css/bootstrap.min.css"/>
    <link rel="stylesheet" href="./bootstrap-3.4.1-dist/css/bootstrap-theme.min.css"/>

</head>
<body>

<div class="<div class="container-fluid">

    <div class="row">
        <div class="col-lg-8">col-lg-8</div>
        <div class="col-lg-4">col-lg-4</div>
    </div>
    <div class="row">
        <div class="col-lg-4">col-lg-4</div>
        <div class="col-lg-4">col-lg-4</div>
        <div class="col-lg-4">col-lg-4</div>
    </div>
    <div class="row">
        <div class="col-lg-5">col-lg-5</div>
        <div class="col-lg-7">col-lg-7</div>
    </div>
    
</div>

<script type="text/javascript" src="./bootstrap-3.4.1-dist/js/bootstrap.min.js"></script>
</body>
</html>